[hot] - Dxr.axd Exploit

<requestFiltering allowDoubleEscaping="false"> <denySequences> <add sequence=".." /> <add sequence="%00" /> <add sequence="file:" /> </denySequences> </requestFiltering>

Reports suggested the resource handler failed to verify referenced objects properly, potentially allowing unauthorized retrieval of files. The Vendor's Rebuttal (False Positive) dxr.axd exploit

is a specialized HTTP Handler used by DevExpress ASP.NET components to serve embedded resources—such as JavaScript, CSS, and images—directly from their assemblies. While essential for the functionality of DevExpress-based web applications, it has been the subject of security scrutiny, most notably concerning an alleged Insecure Direct Object Reference (IDOR) vulnerability. Understanding DXR.axd and its Alleged Vulnerability add sequence=".." /&gt

Last updated: March 2025